47 Decibels at Full Speed: How a 4-Column Motor Stays Quieter Than Your Keyboard

The Numbers: 49.5dB Max, 47dB Average

We placed a sound meter 300mm from the motor housing and ran the desk through its full height range — empty, no load. The peak reading was 49.5 decibels. The average across the entire lift cycle: 47dB.

For context: a mechanical keyboard with blue switches clocks around 50-55dB. A quiet conversation is roughly 60dB. The NexoHero desk at full speed is literally quieter than the keyboard sitting on top of it.

The BIFMA standard for dual-motor desks sets the pass threshold at 48dB. The 4-column motor system runs at 47dB average — under the limit even at sustained operation. This isn't an accident. Each of the four columns uses its own motor, so no single motor carries the full load. Lower load per motor means lower noise per motor.

Soft Start, Silent Stop: 0.6 Seconds of Engineering

Motors make the most noise when they jerk into motion. That's why the NexoHero control box uses a 0.6-second acceleration ramp — the motor goes from 0 to 20mm per second gradually, not instantly. The same ramp applies in reverse when stopping.

The lab verified this across 39 separate tests. Loaded, unloaded, mid-cycle direction changes — the ramp is consistent. Hit the button and the desk glides, it doesn't jolt. At 3 AM with roommates or family sleeping in the next room, that 0.6 seconds is the difference between adjusting your desk and waking someone up.

The Motor Comparison Nobody Makes

Most 2-leg standing desks use two motors. Makes sense — one per leg. But here's what the spec sheets don't tell you: with only two motors, each one handles 50% of the total load. With a 4-column system, each motor handles 25%.

This is basic physics. Half the load per motor means less strain, lower RPM under load, and less vibration transmitted through the frame into the desktop. The noise meter at 300mm confirms it — 47dB average with four lightly-loaded motors beats two motors running near their rated capacity every time.

What You Actually Hear

At standing height, with a monitor, keyboard, and PC case on the desk, the lift mechanism produces a low mechanical hum. Not a whine, not a grind. The EVT report's noise test was done empty — real-world loaded noise is typically even lower because the mass of your gear dampens frame vibration.

If you've ever owned a desk that sounded like a garage door opener waking up, you know why this matters. A zero-wobble desk should also be a zero-annoyance desk.